Specifications

WIRING AND CONNECTIONS
Pag. 10
4.4 MEETING INTERFACE
Meeting facilities has been designed especially to allow cascade connection of several Macrotel units
sharing the same Meeting bus.
The cascade (that may include Macrotel 5, 7 or 9) is fed by a N-1output*** of mixing console and provides a
total ‘receive’ signal which is the sum of signals received from telephone lines connected to the single
hybrids.
Meeting cable requires crossed connection among Pin 1and 2 and Pins 4 and 5 (see picture above).
Output meeting impedance may be set to 600 Ohms rather to 10 Kohms. Please refer to Chapter 0.
*** Mix-minus (N-1) is a mix of all audio signals being sent to the telephone line, minus the incoming caller
audio.
Please refer to parr. 5.4 (MT BUTTON) for further Meeting operation modes.
4.5 2 WIRE CONNECTION
Macrotel hybrids operate on standard POTS (Plain Old Telephone Service) / PSTN (Public Switched
Telephone Network) analog telephone lines.
The Macrotel RJ11 socket will accept 4 conductor modular plugs, but only the 2 central conductors
(typically
Red & Green ) are used.
The ‘Phone’ socket allows the connection on parallel
of a standard telephone set (f.i. for dialling). Please
note that ‘Phone’ socket is always active (i.e. it does not depend on the ‘Hook’ button state
).
4.6 4 WIRE CONNECTION **
4 wire connection is provided through two screwed terminal blocks. RX / TX impedance is set at 600 Ohms.
** available as an option (Macrotel PLUS version).